The entire development is expected to cost $2.6 billion. In addition to designing the master plan, HOK is also designing two high-rise office towers for the new development.

With With 13.5 million residents, Istanbul is the second-largest city in the world, behind only Shanghai. The 170-acre International Financial Center will be on the city’s Asian side, and it will contain 45 million square feet of office, residential, retail, conference, hotel and park space. The entire development is expected to cost $2.6 billion. In addition to designing the master plan, HOK is also designing two high-rise office towers for the new development.

“Our master plan provides a framework for developing a sustainable financial center in a way that blends human need, environmental stewardship and economic viability into a new global model of urbanism rooted in Turkish culture,” said HOK President Bill Hellmuth in a statement.

Istanbul’s new International Financial Center will feature a new subway line and station, and the master plan also calls for new infrastructure for sustainable power, water, data and security. The new buildings will feature green roofs, and the development will also feature a new urban park. Construction has already started on the site, and work is expected to be completed by 2016.